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TTQ Co. Ltd.Cashew Processing Machines
By country · Africa

Cashew Project Revival in Africa

Restarting Africa’s idle cashew plants

Many African cashew plants sit idle or under-perform — usually from yield, energy and reliability problems, not lack of demand. Targeted revival brings them back to profit.

Updated August 2026 · TTQ Co. Ltd.

In short

Africa grows the majority of the world's raw cashew but processes only a small fraction of it locally — most nuts are still shipped raw to Asia. Across the continent, plants built to close that gap stand idle or run below capacity, typically because of poor whole-kernel yield, high energy cost, unreliable equipment or weak commissioning, rather than any lack of raw nuts or demand. Cashew project revival assesses what equipment can be saved, re-engineers the line around modern steaming, shelling and peeling, and restarts production with the training the plant never got. It is usually far cheaper than building new, and it keeps value and jobs at origin. TTQ revives African plants of any make.

01

The opportunity

Africa's share of world raw cashew production has grown for two decades. Côte d'Ivoire is the largest producer in the world; Tanzania, Nigeria, Benin, Ghana, Guinea-Bissau and Mozambique are all major origins — the figures and their sources are on the production by country page. Yet the large majority of African RCN is still exported unprocessed, so the shelling margin, the jobs and the by-product revenue from shell energy and CNSL all leave with the nuts.

Reviving an idle plant is usually faster and cheaper than greenfield construction, because the expensive slow parts already exist: the building, the power connection, the water, the road access and often the workforce. What is missing is almost always process equipment and the knowledge to run it.

02

Why African cashew plants stall

Mismatched machinery

a sheller that outruns its dryer, or a dryer sized for a shift the shelling line cannot fill. The plant is limited by its worst-matched pair, not by its largest machine.

Steam that will not hold

steaming needs 3–4 bar for 20–25 minutes. A boiler that cannot hold pressure under load gives under-conditioned shells, and every kernel downstream pays for it in breakage.

No humidification

kernels come out of borma drying at 3–4% moisture and brittle. Peeled at that moisture they shatter. Plants without a humidification room blame the peeler for years.

No local spares

a knife or a cup that takes eight weeks to arrive is a plant that stops. Spares planning is part of the engineering, not an afterthought.

Working-capital gaps

raw nuts must be bought in a short season. A plant that cannot fund its buying runs at part capacity all year on a full year of fixed cost.

Every item on that list is an engineering or configuration problem. None of them is a reason the plant cannot work.

03

The revival process

  1. Plant assessment. On-site or video audit of every stage — what stays, what is rebuilt, what is replaced, and what the building and power connection can actually support.
  2. Re-engineering. The line rebalanced around the eight core stages, steaming corrected to 3–4 bar for 20–25 minutes, humidification added ahead of peeling, and a shell-fired boiler so fuel comes from your own waste stream.
  3. Restart and training. Commissioning on local nuts rather than a demonstration batch, operator training, and quality calibration to your buyers' specification — under 3% broken, under 5% uncut, 85–90% whole on cutting.
  4. Support. A spares kit sized to how remote you are, remote diagnostics, and help through the first seasonal ramp-up, which is when most restarts are actually decided.
04

Machinery for African conditions

Power that tolerates the grid

380V 3-phase equipment with single-phase options on the small stages, and inverter compressors that ride through the voltage fluctuation a lot of sites live with.

Fuel from the yard

shell-fired steam cuts diesel dependence, and diesel is often the single largest controllable cost on an African plant.

Lines sized to one region's supply

compact 230–560 kg/h lines that match what your catchment actually delivers, with a route to multi-line capacity once supply and working capital support it.

Parts you can hold

wear items chosen so a realistic spares kit fits in a cupboard rather than a container.

Revival fixes root causes — see the project revival service and technology integration.

Cheaper than new

Upgrading the weak stages of a stalled plant typically costs far less than a new build, and gets to production faster. What it costs depends entirely on what survives the audit, which is why the assessment comes before any number.

Diagrams

The process, drawn

Process diagram

The eight core stages

Raw cashew nut in at one end, packed export kernel out at the other. Moisture is the thread: every stage either takes it out or puts a controlled amount back.

Calibration Size grading 8–10% moisture
Steaming Shell softened 3–4 bar · 20–25 min
Shelling Kernel released 85–90% whole
Borma drying Testa turns brittle 13–14 h → 3–4%
Humidification Surface rewetted → 5–6% surface
Peeling Testa removed 80–90% first pass
Grading & sorting Size then colour W180–W500
Packing Vacuum + metal check 3–5% moisture

Capacities and cycles are Size A basis, per 8-hour shift. Stages 04 and 05 are separate machines in separate rooms — the borma oven dries, the humidifier puts moisture back.

Process diagram

The shell energy loop

The cleanest economics on the site: the waste stream from stage 03 comes back as the heat for stages 02 and 04.

Shell from shelling ≈ 70% of raw-nut weight
Shell burner 90–95% combustion efficiency
Boiler 300–4,000 kg steam/h
Steam to process Steaming, drying, humidifying

The same TTQ boiler range fires cashew shell, wood chips or pellets. Note the dryer is heated by electrical coils or by boiler steam through heat-transfer coils — the shell burner fires the boiler and the roasting machine, not the dryer directly.

Answers

Frequently asked questions

Why do African cashew plants fail?
Usually from yield, energy and reliability problems and weak commissioning — not lack of raw nuts or demand. These are fixable through targeted revival.
Is reviving cheaper than building a new plant?
Usually yes — upgrading the weak stages of a working plant costs far less than a new build and reaches production faster.
Our plant has been closed for years — is it worth reviving?
Usually yes if the building and power connection are sound. Steaming, shelling and peeling equipment is what typically needs replacing, and that is the cheaper half of a plant. Start with an assessment.
Which countries do you work in?
TTQ has supplied and revived plants across West and East Africa. Tell us where you are and we will confirm logistics and installation support for that country.
What does a revival cost?
It depends entirely on what survives the audit — which is why we assess before quoting. Contact us for an assessment and a costed proposal.

Talk to a cashew engineer

Tell us your target capacity, grades and location — we’ll come back with a costed proposal.

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